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Modifying a subset of rows in a pandas dataframe
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To replace multiples columns convert to numpy array using .values:
df.loc[df.A==0, ['B', 'C']] = df.loc[df.A==0, ['B', 'C']].values / 2
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Saving enum from select in Rails 4.1
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No need converting the enum hash to array with to_a. This suffice:
f.select :color, Wine.colors.map { |key, value| [key.humanize, key] }
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Android Notification Sound
I've used the newer NotificationCompat builder and I can't get the notification to make a sound. It will vibrate and flash the light. The android documentation says to set a style which I've done with:
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Detect if value is number in MySQL
... FROM myTable WHERE concat('',col1 * 1) = col1
It doesn't work for non-standard numbers like
1e4
1.2e5
123. (trailing decimal)
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How to iterate over a JSONObject?
...der doesn't matter in maps of properties: keys in JSONObject are unordered and your assertion was a simple reflection of a private implementation ;)
– caligari
Oct 1 '13 at 13:55
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Java RegEx meta character (.) and ordinary dot?
... RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
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when using AlertDialog.Builder with EditText, the Soft Keyboard doesn't pop
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Thank you so much. I've searched for a while now and this is the way you want to go. All the OnFocusChangeListener approaches seem to much to me and cause trouble. You have to create the AlertDialog from the AlertDialog.Builder!
– philipp
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How can I view MSIL / CIL generated by C# compiler? Why is it called assembly?
... of compiling it directly to binary code (Native code). High level code is converted into intermediate language (called MSIL aka CIL). But when I compile, I get an exe/Dll file.
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How can I find an element by CSS class with XPath?
...not need many of these Xpath queries, you might want to use a library that converts CSS selectors to XPath, as CSS selectors are usually a lot easier to both read and write than XPath queries. For example, in this case, you could use both div[class~="Test"] and div.Test to get the same result.
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Fastest method to escape HTML tags as HTML entities?
...f the following job: sanitizing strings that might contain HTML tags, by converting < , > and & to &lt; , &gt; and &amp; , respectively.
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